In an analysis of variance, one estimate of σ2 is based upon the differences between the treatment means and the
A) means of each sample
B) overall sample mean
C) sum of observations
D) populations have equal means

Question

Quizplus · Accepted Answer

The estimate of σ2 in an analysis of variance is based on the differences between the treatment means and the overall sample mean. The overall sample mean serves as a reference point in determining the variability among the group means.

In an Analysis of Variance, One Estimate of σ2 Is